The placental barrier between the maternal and foetal blood is minimum in

  • [AIIMS 1992]
  • A

    Goat

  • B

    Pig

  • C

    Cow

  • D

    Human

Similar Questions

Mammalian eggs have

At what stage the primitive streak in the chick embryo is formed

$A$ : Failure of testes to descend into the scrotum causes sterility in man.
$R$ : Higher internal body temperature is not suitable for sperm development.

Follicular phase is also called

Signals from fully developed foetus and placenta ultimately lead to parturition which requires the release of